NJFBOA - Home of New Jersey's Camaros and Firebirds - View Single Post - Newly Cammed LT1 Runs Poorly In Closed Loop

Pampered-Z · 04-24-2012, 05:01 PM

Looking at the one scan, the car seems to run fine in open loop, once it goes into close loop I do seem some very odd O2 splits for 1-2 cells, such as RB at 880 and LB at 53. Which I think could be a miss or maybe an injector sticking. But for the majority of the time the O2s are running close together and the injector pulse and LTs look fine.

I'd like to look at a scan of the car under load and when it starts acting up badly, so I can get a better veiw of the fuel trims, spark advance, knock etc.

04-24-2012, 05:01 PM	#27
Pampered-Z Sliderule / Moderator Join Date: Oct 2004 Location: Catawissa PA Posts: 2,294 iTrader: (1)	Looking at the one scan, the car seems to run fine in open loop, once it goes into close loop I do seem some very odd O2 splits for 1-2 cells, such as RB at 880 and LB at 53. Which I think could be a miss or maybe an injector sticking. But for the majority of the time the O2s are running close together and the injector pulse and LTs look fine. I'd like to look at a scan of the car under load and when it starts acting up badly, so I can get a better veiw of the fuel trims, spark advance, knock etc. __________________ 93Z M6 Black: The 385 Lives! Supercharged, 3-core front mount intercooler, GTP heads, 3:73's, Street twin clutch, Jethot Longtubes, Mufflex 4" catback/spintech, S+W cage, Spohn Suspenion, Yada Yada Yada 1) Build it 2) Race it 3) Break it 4) Repeat!!!